/Engine/Source/Runtime/SignalProcessing/Public/DSP/IntegerDelay.h
Retrieve a copy of the internal delay line. InNum must be less than or equal to InMaxNumDelaySamples.
void PeekDelayLine ( int32 InNum, [Audio::FAlignedFloatBuffer](API\Runtime\SignalProcessing\DSP\FAlignedFloatBuffer) & OutSamples )